Space Siege - Hands On @ GameSpot

Throughout Space Siege, you'll be given the choice to upgrade to cybernetic implants. Depending on what path you choose, different skills will become available on the skill tree. Some of the more potent combat bonuses will require you to be mostly cyborg, whereas others, such as discipline and inspiration, require that you remain 100 percent human. Certainly it will take a lot of discipline to play though the game without any upgrades, but you'll be rewarded in the end with multiple endings depending on your style of play.